From owner-freebsd-hackers Sun Jan 28 16:48:19 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id QAA15276 for hackers-outgoing; Sun, 28 Jan 1996 16:48:19 -0800 (PST) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id QAA15269 for ; Sun, 28 Jan 1996 16:48:12 -0800 (PST) Received: from msmith@localhost by genesis.atrad.adelaide.edu.au (8.6.12/8.6.9) id LAA08717; Mon, 29 Jan 1996 11:28:35 +1030 From: Michael Smith Message-Id: <199601290058.LAA08717@genesis.atrad.adelaide.edu.au> Subject: Re: Multi-Port Async Cards To: terry@lambert.org (Terry Lambert) Date: Mon, 29 Jan 1996 11:28:35 +1030 (CST) Cc: hsu@clinet.fi, hm@altona.hamburg.com, freebsd-hackers@freebsd.org In-Reply-To: <199601282257.PAA01785@phaeton.artisoft.com> from "Terry Lambert" at Jan 28, 96 03:57:11 pm MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org Precedence: bulk Terry Lambert stands accused of saying: > > > mgetty would be useful as it can > > actively reply calls instead of modems answering automatically, thus > > avoiding callers getting modem answer when the terminal server has crashed > > and won't be there. > > A properly configured modem and getty will do this as well. No, it won't. There is no hardware feature in the 8250-family UART that deasserts DTR when the machine has crashed. In fact, I know of no UART family that meets this criteria. > If the machine crashes, getty goes away (the POST state on a proper serial > port is to not assert DTR), and so the modems are not answered. In my experience, very few system BIOSses reset DTR, and this isn't the issue here anyway; if the system has rebooted there's a reasonably good chance that it'll be back up and running properly shortly. > Terry Lambert -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] "wherever you go, there you are" - Buckaroo Banzai [[